Test Running; Preparation Before Connecting The Power; Operation After Connecting The Power - Gree U-Match Series Owner's Manual

Check items
Is the voltage consistent with that
stated on the nameplate?
Are the wires and pipes installed
correctly?
Has the unit been safely
grounded?
Do the specifications of wires
comply with the requirement?
Is there any obstacle blocking
the air inlet and outlet of the
indoor unit?
Have you recorded the length of
refrigerant pipe
refrigerant charging amount?

3.5 Test Running

Preparation before connecting the power.

(1) Power must not be connected if the installation work is not completed.
(2) Control circuit is correct and all the wires are firmly connected.
(3) Cut-off valves of the gas pipe and liquid pipe are open.
(4) The inside of the unit should be clean. Take irrelevant objects out if there is
any.
(5) After checking, re-install the front side plate.

Operation after connecting the power.

(1) If all the above works are finished, power on the unit.
(2) If the outside temperature is more than 30°C, heating mode can't be enabled.
(3) Make sure the indoor and outdoor units can run normally.
(4) If there's sound of liquid shock when the compressor is running, then stop the
air conditioner immediately. Wait until the electric heating belt is heated
enough, and then restart the air conditioner.
(5) Feel the air flow of the indoor unit to see if it is normal.
(6) Press the swing button or speed control button on remote control or wired
control to see if the fan can run normally.
Possible events due to improper installation
The unit may fail or its components may get
burned.
The unit may fail or its components may get
burned.
Risk of electric leakage.
The unit may fail or its components may get
burned.
Cooling capacity may become unsatisfactory.
The refrigerant charging amount can't be
and the
controlled.
43
U-Match Series Duct Type Unit